arm-trusted-firmware/plat/meson/gxbb/gxbb_efuse.c
Antonio Nino Diaz f3ff9f77d3 gxbb: Initial port of Amlogic Meson S905 (GXBB)
The Amlogic Meson S905 is a SoC with a quad core Arm Cortex-A53 running
at 1.5Ghz. It also contains a Cortex-M3 used as SCP.

This port is a minimal implementation of BL31 capable of booting
mainline U-Boot and Linux:

- Partial SCPI support.
- Basic PSCI support (CPU_ON, SYSTEM_RESET, SYSTEM_OFF).
- GICv2 driver set up.
- Basic SIP services (read efuse data, enable/disable JTAG).

This port has been tested in an ODROID-C2.

Change-Id: Ia4bc82d7aca42a69d6b118b947279f82b3f6c6da
Tested-by: Amit Singh Tomar <amittomer25@gmail.com>
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2018-10-26 11:53:41 +01:00

26 lines
481 B
C

/*
* Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <stdint.h>
#include "gxbb_private.h"
#define EFUSE_BASE 0x140
#define EFUSE_SIZE 0xC0
uint64_t gxbb_efuse_read(void *dst, uint32_t offset, uint32_t size)
{
if ((uint64_t)(offset + size) > (uint64_t)EFUSE_SIZE)
return 0;
return scpi_efuse_read(dst, offset + EFUSE_BASE, size);
}
uint64_t gxbb_efuse_user_max(void)
{
return EFUSE_SIZE;
}